US3604569A - Railway coupler shank having a key slot - Google Patents
Railway coupler shank having a key slot Download PDFInfo
- Publication number
- US3604569A US3604569A US851632A US3604569DA US3604569A US 3604569 A US3604569 A US 3604569A US 851632 A US851632 A US 851632A US 3604569D A US3604569D A US 3604569DA US 3604569 A US3604569 A US 3604569A
- Authority
- US
- United States
- Prior art keywords
- bottom walls
- shank
- forward wall
- upper surfaces
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
- B61G3/04—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
Definitions
- Type E couplers having an E-60-type shank approved by the Association of American Railroads (AAR) have been exhibiting undesirable shortening and breakage in the butt area due to heavy buffing and pulling loads. With the present trend toward increased speeds and higher capacities these unfavorable conditions are becoming more prevalent. Furthermore, the shank of the present AAR couplers will have to be changed if train capacities of 20,000 trailing tons are to be adopted. It is therefore an object of this invention to provide a new shank for a key-slot-type coupler.
- a further object of this invention is to provide a coupler shank with a key slot that will have a greater load capacity than present AAR -60 shanks without increased weight.
- Another object of this invention is to provide a coupler shank that will withstand high speed and high capacity demands.
- FIG. 1 is a partial top plan view of a coupler, partly sectioned on the centerline of the key slot, embodying features of the invention
- FIG. 2 is a partial side view of the coupler illustrated in FIG. 1 partly sectioned on the centerline of the shank;
- FIG. 3 is a sectional view of the entire shank taken on line 3-3 of FIG. 2;
- FIG. 4 is a sectional view of the entire shank taken on line 4-4 of FIG. 2;
- FIG. 5 is a fragmentary top plan view in section illustrating the shank of FIG. 1 keyed to a yoke;
- FIG. 6 is a fragmentary, sectional side view illustrating the shank of a coupler taken on the centerline of the shank embodying features of the invention.
- FIG. 7 is a fragmentary, sectional view of the shank taken on line 7--7 of FIG. 6;
- FIGS. 8 and 9 are fragmentary, sectional side views taken on the center line of a shank illustrating otherembodiments of the invention.
- FIGS. 1 and 2 illustrate a coupler 10 having an AAR Type E head 12 and an E-60-type shank 14.
- a key slot 16 extends laterally through shank 14 adjacent butt 18.
- a key 20 may project through key slot 16 and be used to connect coupler 10 to a yoke 22 (FIG. 5).
- the dimensions of key slot 16 may be according to AAR standards as may be the exterior dimensions of shank 14.
- the forward end of shank 14 comprises a boxlike section 24 (FIG. 3) defined by top and bottom walls 26 and 28 and opposed sidewalls 30 and 32. Top and bottom walls 26 and 28 may angle inwardly, increasing in cross section, proximate key slot 16 and blend into a forward wall 34 (FIG. 2) which acts as an end wall for the cavity defined by boxlike section 24.
- a radius R is struck from centerline AA of key slot 16 and used to generate a portion of inner surface 36 of forward wall 34.
- Second radii R (only one shown) are used to blend lower and upper surfaces 38 and 40 of top and bottom walls 26 and 28 respectively into inner surface 36.
- Other methods of forming inner surface 36 and blending lower and upper surfaces 38 and 40 are also contemplated.
- surface 36 may be normal to centerline A-A and blend into surfaces 38 and 40 by arcuate surfaces tangent thereto and dcfincd, for example by radii R (FIG. 8).
- a combination of radii similar to those illustrated in FIG. 2 may also be used in place of radii R,,. It is also possible to increase radius R in FIG.
- radius R in FIG. 9 is illustrated as being struck from a point located above centerline A- A.
- the radius R, of FIG. 9 could also be located on or below centerline A--A with appropriate modifications to surfaces 38 and 40.
- Upper and lower lightener indentations 42 and 44 may be provided in top and bottom walls 26 and 28 above and below key slot 16.
- the indentations 42 and 44 are primarily used to reduce the weight of shank I4 and form U-shaped sections in top and bottom walls 26 and 28 (FIG. 4).
- Top and bottom walls 26 and 28 above and below key slot 16 may be about l to l A inches thick.
- Another lightener indentation 46 may be added in butt 18.
- Butt 18 may be considered to extend across the entire rear end of shank 14.
- Top and bottom walls 26 and 28 interconnect butt I8 and coupler head 12.
- Sidewalls 30 and 32 interconnect coupler head 12 and forward wall 34 and also interconnect top and bottom walls 26 and 28 in boxlike section 24.
- Forward wall 34 transverses shank 14 and interconnects top and bottom walls 26 and 28 forward of key slot 16 which is defined by top and bottom walls 26 and 28, butt l8 and forward wall 34.
- coupler 10 may angle relative to yoke 22 thereby causingkey 20 to angle in key slot 16 (FIG. 5).
- pressure is exerted at one of the rear corners 48 of key slot 16 causing metal peening.
- Metal forced outward proximate a corner 48 by peening is subject to cracking causing fatigue failure of the butt end.
- rearward corners 48 of slot 16 are chamfered, e.g., one-quarter of an inch by 45. Metal peening in this arrangement is reduced in the chamfered section.
- top and bottom walls 26 and 28 During straight pulling, force exerted against butt 18 by key 20 is transmitted laterally across butt l8 and into top and bottom walls 26 and 28 (FIG. 2) and then partially to sidewalls 30 and 32 (FIG. 1). It should be noted that as the force is partially transmitted to the sidewalls 30 and 32 (FIG. 1) the thickness of top and bottom walls 26 and 28 may be reduced without loss of strength to shank 14 (FIG. 2). In the AAR E-60 shank such pulling forces are only transmitted to given lighter sections of the shank and not directly across the entire key slot area.
- Manufacture of the disclosed design is also simpler and easier than that of the present AAR E-60 design.
- Small cores for boxlike section 24, and lightener recess 46 replace the one large core presently used in the E-60 design.
- Upper and lower indentations 42 and 44 may be defined by projection on the cope and drag of the mold used to make the casting.
- FIG. 6 illustrates another embodiment of the invention.
- Top and bottom walls 26 and 28 increase in cross section and angle directly into radial surface 36 generated by R-, forming a U- shaped configuration in longitudinal cross section of shank 14.
- An indentation 52 is provided within the outline of coupler 10 below bottom wall 28 for lightening the coupler.
- a rib 50 of bottom wall 28 may extend laterally across shank 14 at the rear extremity of wear plate 54.
- Another rib 56 of bottom wall 28 may extend longitudinally down indentation 52 and be used in combination with surfaces 55 to support wear plate 54.
- the wear plate 54 may be secured by welding in a known manner. In operation, the wear plate 54 engages a coupler carrier (not shown) to support the coupler 10 proximate head 12.
- a railway coupler having a coupler head and a shank secured thereto, said shank comprising: spaced sidewalls connected to said coupler head and extending rearward therefrom, said sidewalls terminating at their rearward ends; a forward wall interconnecting the rearward ends of said spaced sidewalls spaced top and bottom walls connected to said coupler head and extending rearward therefrom beyond said for ward wall, said spaced top and bottom walls being connected to said forward wall and increasing in cross section as they converge on said forward wall from the coupler head side of said forward wall; a butt rearward of said forward wall interconnecting the rearward ends of said top and bottom walls, said butt together with said spaced top and bottom walls and said forward wall defining a key slot therebetween opening toward the sides of said shank.
- a railway coupler according to claim 1 wherein: said spaced top and bottom walls and said spaced sidewalls define a cavity intermediate said forward wall and said coupler head.
- a railway coupler according to claim 4 wherein: said forward wall has a curved forward surface opening toward said cavity; said spaced top and bottom walls have lower and upper surfaces respectively; and arcuate surfaces blend said lower and upper surfaces into said curved forward surface.
- a railway coupler according to claim 4 wherein: said spaced top and bottom walls have lower and upper surfaces respectively which are parallel; said forward wall has a forward surface normal to said lower and upper surfaces; and curved surfaces blend said lower and upper surfaces into said forward surface.
- a railway coupler according to claim 4 wherein: said forward wall has a curved forward surface opening toward said cavity; and said spaced top and bottom walls have lower and upper surfaces respectively which angle into said curved forward surface and are tangent thereto.
- a railway coupler according to claim 4 wherein said bottom wall has an indentation below said cavity and a wear plate is located in said indentation, the bottom surface of said wear plate being substantially planar with the bottom surface of said bottom wall.
- a railway coupler according to claim 8 wherein a longitudinal rib is located on said bottom wall within said indentation, said longitudinal rib having a surface engaged with the top surface of said wear plate.
- a railway coupler according to claim 4 wherein said spaced top and bottom walls have lower and upper surfaces respectively which are parallel; and said forward wall has a radial surface that is tangent to said lower and upper surfaces and that opens toward said cavity.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85163269A | 1969-08-20 | 1969-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3604569A true US3604569A (en) | 1971-09-14 |
Family
ID=25311256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US851632A Expired - Lifetime US3604569A (en) | 1969-08-20 | 1969-08-20 | Railway coupler shank having a key slot |
Country Status (5)
Country | Link |
---|---|
US (1) | US3604569A (es) |
BE (1) | BE754600A (es) |
ES (1) | ES382396A1 (es) |
GB (1) | GB1266643A (es) |
ZA (1) | ZA704951B (es) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8196762B2 (en) | 2008-05-23 | 2012-06-12 | Bedloe Industries Llc | Knuckle formed without a finger core |
US8201613B2 (en) | 2008-05-23 | 2012-06-19 | Bedloe Industries Llc | Knuckle formed from pivot pin and kidney core and isolated finger core |
US8408406B2 (en) | 2008-05-22 | 2013-04-02 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
US8544662B2 (en) | 2008-05-22 | 2013-10-01 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
US8662327B2 (en) | 2008-05-23 | 2014-03-04 | Bedloe Industries Llc | Railway coupler core structure for increased strength and fatigue life of resulting knuckle |
US8746473B2 (en) | 2008-05-22 | 2014-06-10 | Bedloe Industries Llc | Railway coupler body improvements to improve knuckle rotation |
US9038836B1 (en) | 2012-11-15 | 2015-05-26 | Pennsy Corporation | Lightweight coupler |
US9452764B2 (en) | 2012-11-15 | 2016-09-27 | Pennsy Corporation | Railway vehicle coupler |
US9604276B2 (en) | 2014-02-03 | 2017-03-28 | Pennsy Corporation | Coupler and method for production of a coupler with selectable configuration options |
US10150490B2 (en) | 2015-05-22 | 2018-12-11 | Pennsy Corporation | Coupler for a railway vehicle, cores and method for production |
US10196076B2 (en) | 2012-11-15 | 2019-02-05 | Pennsy Corporation | Coupler knuckle |
US11345374B1 (en) | 2012-11-15 | 2022-05-31 | Pennsy Corporation | Lightweight coupler |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4976362A (en) * | 1989-08-04 | 1990-12-11 | Amsted Industries Incorporated | Pulling lug for railway vehicle coupler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1482751A (en) * | 1922-10-05 | 1924-02-05 | American Steel Foundries | Coupler |
US1498540A (en) * | 1921-05-13 | 1924-06-24 | Nat Malleable & Steel Castings | Coupler shank and yoke connection |
-
0
- BE BE754600D patent/BE754600A/xx not_active IP Right Cessation
-
1969
- 1969-08-20 US US851632A patent/US3604569A/en not_active Expired - Lifetime
-
1970
- 1970-07-16 GB GB1266643D patent/GB1266643A/en not_active Expired
- 1970-07-20 ZA ZA704951A patent/ZA704951B/xx unknown
- 1970-08-03 ES ES382396A patent/ES382396A1/es not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1498540A (en) * | 1921-05-13 | 1924-06-24 | Nat Malleable & Steel Castings | Coupler shank and yoke connection |
US1482751A (en) * | 1922-10-05 | 1924-02-05 | American Steel Foundries | Coupler |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8544662B2 (en) | 2008-05-22 | 2013-10-01 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
US8746473B2 (en) | 2008-05-22 | 2014-06-10 | Bedloe Industries Llc | Railway coupler body improvements to improve knuckle rotation |
US8408406B2 (en) | 2008-05-22 | 2013-04-02 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
US8662327B2 (en) | 2008-05-23 | 2014-03-04 | Bedloe Industries Llc | Railway coupler core structure for increased strength and fatigue life of resulting knuckle |
US8631952B2 (en) | 2008-05-23 | 2014-01-21 | Bedloe Industries Llc | Knuckle formed without a finger core |
US8646631B2 (en) | 2008-05-23 | 2014-02-11 | Bedloe Industries, LLC | Knuckle formed from pivot pin and kidney core and isolated finger core |
US8196762B2 (en) | 2008-05-23 | 2012-06-12 | Bedloe Industries Llc | Knuckle formed without a finger core |
US8201613B2 (en) | 2008-05-23 | 2012-06-19 | Bedloe Industries Llc | Knuckle formed from pivot pin and kidney core and isolated finger core |
US9038836B1 (en) | 2012-11-15 | 2015-05-26 | Pennsy Corporation | Lightweight coupler |
US9452764B2 (en) | 2012-11-15 | 2016-09-27 | Pennsy Corporation | Railway vehicle coupler |
US10196076B2 (en) | 2012-11-15 | 2019-02-05 | Pennsy Corporation | Coupler knuckle |
US11345374B1 (en) | 2012-11-15 | 2022-05-31 | Pennsy Corporation | Lightweight coupler |
US9604276B2 (en) | 2014-02-03 | 2017-03-28 | Pennsy Corporation | Coupler and method for production of a coupler with selectable configuration options |
US10150490B2 (en) | 2015-05-22 | 2018-12-11 | Pennsy Corporation | Coupler for a railway vehicle, cores and method for production |
Also Published As
Publication number | Publication date |
---|---|
GB1266643A (es) | 1972-03-15 |
ES382396A1 (es) | 1972-11-16 |
ZA704951B (en) | 1971-12-29 |
BE754600A (fr) | 1971-01-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE., IL Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, AS AGENT;REEL/FRAME:005070/0731 Effective date: 19880831 |